Abstract: A chain wheel arrangement for driving or reversing stations of underground scraper chain conveyors, comprising a chain wheel (1), a chain-wheel shaft (3) comprising a splined portion (11) between two offset-diameter shaft stub portions and to which the chain wheel (1) can be fastened in rotational engagement by axial sliding on to it, also comprising bearing shells (5) receiving bearings for the chain-wheel shaft (3), disposed on each side of the chain wheel (1) and adapted to be fastened in bearing-shell recesses, open at the edges, in the side cheeks of the driving or reversing station, also comprising bearing support rings (26) which abut the outer cage (4B) of the bearings (4), and securing means comprising spacer sleeves (16) for axially securing the chain wheel (1) relative to the splined portion (11), in which the spacer sleeves (16) rest loosely between the bearings (4A) and the chain wheel (1), wherein a clamping cover (30) is fastened to at least one shaft end (13) and presses against a clamping sle

Abstract: A rotatable member, for use with an elongated woven-wire belt assembled from spiral wires and connector rods which define recesses, of preselected uniform cross-sectional configurational and dimensional characteristics and having a preselected depth dimension for confronting a rotatable member. The rotatable member includes a hollow tubular member defining an outer cylindrical surface symmetrically disposed in relation to a central axis of rotation for the rotatable member, a plurality of rows of uniformly radially-oriented protrusions on the cylindrical surface for use in engaging recesses presented by interwoven spiral wires and connector rods of a woven-wire belt, and a plurality of slotted opening formed between the adjacent rows of protrusions.

Abstract: A sprocket assembly for a roller conveyor comprising a hub and a sprocket plate, the hub having a central cylindrical bore for fitting onto a round shaft of a roller, the hub having provisions for rotationally and axially locking it on a shaft in a manner adequate to transmit torque to the shaft and rotationally drive the roller, the sprocket plate having peripheral teeth adapted to be interengaged with a drive chain and a central bore capable of receiving the shaft, the sprocket plate and hub being constructed and arranged to be removably joined together with the centers of their respective bores coincident, said hub and sprocket plate having complementarily shaped radially extending abutting surfaces enabling the sprocket plate to develop torque on the hub by compressive forces developed by the radially extending sprocket plate surfaces against the radially extending hub surfaces.

Abstract: A belt conveyor includes a driven roller and at least one other roller positioned along and between opposite sidewalls of the conveyor and a continuous belt routed around the driven roller and the other roller or rollers. The driven roller is drivable to drive the belt around the rollers to move articles along the respective zone. The belt has a low modulus characteristic and may be initially stretched at least 0.75 percent in its lengthwise direction when the belt is reeved or routed around the rollers. The driven roller may be drivable in response to an article sensor that senses articles on the conveyor belt, in order to convey or accumulate articles on the belt conveyor.

Abstract: A flat wire conveyor belt system includes a plurality of spaced tractive rods and a plurality of rows of pickets transversely disposed with respect to a direction of travel and interconnecting the plurality of spaced tractive rods, each of the rows of pickets including a plurality of first links and a plurality of second links, the plurality of first links have a first spacing and the plurality of second links have a second spacing, the first spacing being less than the second spacing. The system further includes a sprocket, wherein the plurality of first links are configured to engage the sprocket teeth thereof.

Abstract: An endless conveyor belt (10) comprises a flat belt portion (12) with strips (20) of teeth (28) attached to one side of the flat belt, near the side edges (26) of the flat belt. In another embodiment, the side edges of the strips are attached to the side edges of the flat belt. In either embodiment, the strips are first attached to the flat belt, and then machined to form a plurality of teeth on each strip. The strips can be of a different material than the flat belt. The conveyor belt can be employed with conveyors having small radius pulleys (54) and nose bars (58).

Abstract: A conveyor includes an endless belt having teeth with drive faces raked away from the direction of travel. The conveyor also includes a drive pulley having sheaves with drive faces raked toward the direction of travel. The drive faces on the sheaves engage the drive faces on the teeth to move the belt and the raked angle tends to pull the belt inwardly. A stationary foot assists removing a driven tooth from its corresponding sheave.

Abstract: A modular conveying system with sprockets engaging the modules such that they do not cover any link gaps but are positioned between the link gaps. The module is characterized by link structures having link pairs that are spaced apart sufficiently at a distance to allow the sprockets to be located between the link pairs. Positioning the sprockets between the link pairs leaves the hinge gaps uncovered and thus allows free access to the hinge gap for cleaning.

Abstract: A conveyor for use in a travelator for transporting passengers in a transport direction. The conveyor comprises a frame; a plurality of shafts mounted on the frame substantially transversely to the transport direction, each of the plurality of shafts being substantially parallel to one another and spaced apart from one another. A belt pulley pack is mounted on each of the shafts, each belt pulley pack comprising a plurality of belt pulleys mounted adjacent to one another. Each belt pulley comprises a mold-cast object comprising: a first side having a first aligning and coupling element formed therein; a second side opposite to the first side, the second side having a second aligning and coupling element fitted to match the first aligning and coupling element, so that the first and second aligning and coupling elements of adjacent belt pulleys align and couple the adjacent belt pulleys together in a shape-locking manner.

Abstract: A conveyor track drive includes a continuous loop conveyor for supporting and carrying a specimen container, with one portion of the conveyor extending through a drive housing. The conveyor includes a first segment extending through the housing, which then wraps around a portion of a drive sprocket, extends back upstream and around a portion of an idler sprocket and then includes a second segment transversely adjacent the first segment. A guide plate on the housing is positioned over the adjacent segments of the conveyor with a slot located to guide a specimen carrier from the first segment to the second segment. The specimen carrier then exits the housing on the second segment of the conveyor. A motor in the housing drives the drive sprocket to move the conveyor.

Abstract: A hingeless belt comprises modules having opposed leading and trailing sides, first and second bases and opposed outer sides. The modules are connected to joining members with layers that can be, for example, an adhesive. The joining members comprise an elastic material which allows the modular belt to bend and flex, and the modules are made of a hard thermoplastic material. The modules and joining members resists cuts and impacts, the modules and joining members are easy to clean and keep sanitary. The joining members are embodied with different shapes for enhancing the connection with the modules, and for enhancing the flexibility of the modular belt as it carries load and as it is driven around a sprocket. There is a molding machine having mold members for making the hingeless belt. There is also a method of making the hingeless belt in the molding machine.

Abstract: A spiral-link belt for use as, for example, a conveyor belt comprising a belt body formed of a series of cross-machine direction (CD) spiral coils linked by pintles in the CD to form an endless loop and a plurality of CD drive bars. Each CD drive bar is formed of linked spiral coils integrated into the belt body.

Abstract: A shearer-loader drive subassembly having a rotatably mounted drive sprocket, a transmission gear connected to the sprocket in a rotationally fixed manner, at least one releasable guide shoe provided for guiding the shearer loader on a rack arrangement, and a housing base plate, on which a bearing tube is supported and fastened in a rotationally fixed manner. The guide shoe is fastened by a pin which passes through the inner bore of the bearing tube and forms the pivot bearing for the guide shoe. A bearing sleeve rotatably supported on the bearing tube by a bearing may be arranged between the drive sprocket and the bearing tube, onto which bearing sleeve the drive sprocket may be pushed in a releasable manner.

Abstract: A key sprocket drive system for a conveyor belt having a drive drum having an outer surface. The outer surface of the drive drum is adapted to engage a securement means. A contoured collar has an inner surface and an outer surface. The contoured collar is adapted to receive the securement means and adapted to engage the outer surface of the drive drum at predetermined positions therefore providing defined gaps between the inner surface of the contoured collar and the outer surface of the drive drum. The key sprocket drive system further comprises a sprocket member having a generally annular configuration with externally facing teeth-like protrusions at spaced intervals. The sprocket member is adapted to receive the securement means whereby the securement means engage the sprocket member and the contoured collar to secure the sprocket member and the contoured collar to the drive drum. The teeth-like protrusions engage the conveyor belt so as to drive the conveyor belt.

Abstract: A locking assembly for use with drive sprockets positioned to drive a conveyor belt supported by a conveyor frame assembly. The locking device includes a main body that extends through each of the drive sprockets positioned along a drive shaft of the conveyor assembly. The locking device includes spaced receiving notches that each receive one of the drive sprockets to maintain a desired spacing between the drive sprockets when the locking device is in its locking position. The locking device is movable to a release position to independently release each of the drive sprockets from the locking device. Once released, each of the drive sprockets are movable along the length of the drive shaft to facilitate cleaning of the conveyor assembly. When the locking device is in its locking position, the combination of the locking device and drive sprockets is movable along the longitudinal length of the drive shaft.

Abstract: A conveyor system in which a modular belt or chain is driven by a drive element rotated at a predetermined variable angular speed to compensate for speed fluctuations due to chordal action. A speed signal generator generates a speed signal generally inverse to the uncompensated linear speed of a belt driven by drive elements rotated at a constant angular speed. The speed signal generator detects an encoded pattern rotating in known relationship to the drive element. The encoded pattern represents a predetermined speed profile that is used to compensate for belt speed fluctuations or to provide custom belt speed performance.

Abstract: An easy-to-clean conveyor with sprockets that reveal the hinge area of a modular conveyor belt to a fluid spray. A conveyor includes a modular belt constructed of rows of belt modules hingedly linked together in series by hinge pins into an endless belt loop. A sprocket, mounted on a shaft for rotation, engages an inner surface of the belt in driving or driven contact. The sprocket extends from a central bored hub to an outer periphery, which is arranged to engage the inner surface of the belt along an area of contact that varies laterally across the inner surface of the belt in each rotation of the sprocket.

Abstract: In the meat processing industry, maintaining a clean and efficient environment can be important. Over the years, modular conveyor belts have become a commonplace component of meat processing operations. To provide an efficient and long lasting conveyor system, sprocket driven modules are provided with improved configurations which result in improved belt tracking and reduce incidents of mechanical failure. Specifically, these improvements include a conveyor module having a central drive bar having alternating crest pairs and troughs along its top, connected by shoulders that enable improved driving and tracking while being structurally strong and easy to clean.

Abstract: The invention is related to drive units for conveyor belts. A flexible rider connected to the belt includes a gear for meshing with a gear of the rotable driver. The meshing of the gears allows the conveyor belt to be pulled about the conveyor.

Abstract: A modular plastic conveyor belt constructed of flexible belt modules molded out of a material such as a flexible elastomeric compound that enables the belt to wrap closely around drive sprockets. Drive elements in the bottom of the belt are uniformly spaced in the direction of belt travel. The distance between consecutive drive elements is the drive pitch, which is less than the pitch, roughly the length, of each module. A belt constructed of these modules has fewer joints between modules than a typical modular conveyor belt of the same length.

Abstract: A belt conveyor or belt accumulator includes at least two tandem zones, each of which is defined by a motorized roller and at least one idler roller positioned along and between opposite sidewalls of the conveyor and a continuous belt routed around the motorized roller and the idler roller or rollers. The motorized roller is operable to drive the belt around the rollers to move articles along the respective zone. The belt may have a low modulus characteristic and may be initially stretched at least 0.75% in its lengthwise direction when the belt is reeved or routed around the rollers. The motorized roller of each zone may be independently operable, such as in response to an article sensor at each zone, to convey or accumulate articles on the respective zone of the belt conveyor.

Abstract: Multi-directional conveyor with a pair of conveying belts, a plurality of sprockets, a sprocket holding frame, a gear reduced drive motor and a plurality of four sided trays. The trays are attached to the conveying belts by outwardly facing horizontal pins that are located at opposing offset corners of the trays and are capable of rotating within corner blocks that are affixed to the tray. The pins are fixedly attached to the conveying belts. The conveying belts have a plurality of evenly spaced apertures that accommodate the sprockets so that the drive motor can power the sprockets that are rotatably pinned to the frame thereby causing the belts to be driven in a linear fashion. The belts are capable of changing their angular orientation according to the spatial relationship of one sprocket to another. The belts are made of thin gauge stainless steel.

Abstract: The drive mechanism (10) has a drive member (12) and a flexible conveying member (14). The engaging elements (12b) of the drive member (12) have an engaging element spacing (t1), while the associated counter elements (14b) of the conveyor member 14 have a counter element spacing (t2). According to the invention the engaging element spacing (t1) of the engaging elements (12b) is larger than the counter element spacing (t2) of the counter elements (14b) of the conveying member in order to compensate for conveyor member stretching in operation. In a preferred embodiment the conveying member is a flexible conveyor chain and the drive member (12) is a toothed drive wheel. In another preferred embodiment the ratio of the engaging element spacing (t1) of the drive member (12) to the counter element spacing (t2) of the conveying member (14) is between about 1.01 and about 1.10.

Abstract: A two-material plastic sprocket for modular plastic conveyor belts and an associated method for molding such a sprocket. The sprocket is made of a first plastic material forming the exterior skin and a second plastic material forming the interior core. The sprocket is preferably molded in a co-injection molding process.

Abstract: A top surface and a bottom surface of an endless belt. The bottom surface having a longitudinal row of spaced apart pairs of pocket attached. Openings in each pocket of a pair opposed to each other, the pocket pairs mounted equidistant between the belt sides. A clip having a pair of spaced apart pliable feet mounted respectively in each pair of pockets. A link of a link chain is held in place by a pair of spaced apart downwardly directed arms integral with the clip. The link chain is engaged to a sprocket drive in a conveyor system to move the endless belt.

Abstract: A drive unit (10) for a continuous conveyance means of a transfer system has a housing part (16) comprising two side walls (17, 18), in each of which a recess (25) is formed. A bearing plate (31) is capable of being inserted into each of the recesses (25) from the top end face of the housing part (16). The drive shaft (37) of a drive wheel (38) for the conveyance mechanism is supported in the bearing plates (31). The design of the drive unit (10) according to the invention allows for universal use of the drive unit (10) combined with easy assembly of its individual parts.

Abstract: A feeding device for taped electric components includes advancing wheels for the tapes. The advancing wheels are driven via tangentially disposed drive spindles of a worm drive. Drive motors for the drive spindles are off-set from one another in two directions of the coordinate system in such a manner that their distance in the axial direction of the advancing wheels is smaller than the distance of the advancing wheels. This thereby allows an increase of the thickness of the drive motors and a corresponding increase of their drive power.

Abstract: A method and arrangement are provided for guiding a drive chain in an area of a reversing chain wheel of a pedestrian conveyor system. The drive chain contains plate link elements, connecting elements connecting the plate link elements in leading and trailing coupling areas of the respective plate link elements, and guide rolls respectively located in the spaces between the coupling areas. The arrangement is such that the drive chain is guided into the chain wheel so that, as seen in the direction of movement, the connecting element in a leading coupling area of one plate link element is guided into an associated reception area of the chain wheel. The guiding roll of that plate link element is then brought into a corresponding cap-shaped indentation of the reversing wheel.

Abstract: A bladed pulley including a plurality of blades extending from a first end to a second end. The bladed pulley having spaced apart blades and an open, central volume configuration to permit conveyed material to fall through the pulley. The bladed pulley further having orienting members located at the ends of the pulley, the orienting members including slots that radially orient and position each of the blades about a longitudinal axis of the bladed pulley. Ends of the blades define bores configured to receive bearing or hub components. The bladed pulley may include retaining members to retain the bearing or hub components within the bores defined by the ends of the blades.

Abstract: A two-material plastic sprocket for modular plastic conveyor belts and an associated method for molding such a sprocket. The sprocket is made of a first plastic material forming the exterior skin and a second plastic material forming the interior core. The sprocket is preferably molded in a co-injection molding process.

Abstract: A bladed pulley including a plurality of blades extending from a first end to a second end. The bladed pulley having spaced apart blades and an open, central volume configuration to permit conveyed material to fall through the pulley. The bladed pulley further having an orienting structure designed to radially orient and position each of the blades about a longitudinal axis.

Abstract: A method and arrangement are provided for guiding a drive chain in an area of a reversing chain wheel of a pedestrian conveyor system. The drive chain contains plate link elements, connecting elements connecting the plate link elements in leading and trailing coupling areas of the respective plate link elements, and guide rolls respectively located in the spaces between the coupling areas. The arrangement is such that the drive chain is guided into the chain wheel so that, as seen in the direction of movement, the connecting element in a leading coupling area of one plate link element is guided into an associated reception area of the chain wheel. The guiding roll of that plate link element is then brought into a corresponding cap-shaped indentation of the reversing wheel.

Abstract: A conveying apparatus comprising a modular belt having a plurality of modules connected to adjacent modules and articulated by pivot rods that extend through openings in the link ends of the modules. The openings extend transverse to the direction of belt travel. The apparatus also includes a drive sprocket having a plurality of teeth disposed about the circumference of the wheel. Each tooth has a center driving surface and a link end driving surface. The teeth are disposed such that each belt module may be driven in either direction from the center by one of the teeth and simultaneously driven at a link end by one of the other teeth such that there is positive engagement with each belt module by two teeth. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

Abstract: A device for driving step of an escalator or pallets of a moving walkway. A chain wheel has a chain wheel drive shaft and is coupled to the steps or pallets. The device includes a driving gear for being coupled to the chain wheel drive shaft. The device also includes at least one driving motor coupled to the driving gear. The driving gear includes first and second gears coupled to the chain wheel drive shaft. The first and second gears each have variable reference diameters.

Abstract: A split sprocket assembly, related apparatus, and a method of mounting a sprocket to a rotatable structure, such as a drive or idler drum, are disclosed. In one embodiment, the sprocket assembly is comprised of at least three sections or segments, each of which is secured to the adjacent section or segment by a fastener, such as a tangentially-extending bolt and nut combination. The sprocket assembly includes a plurality of receivers, each for receiving a key that corresponds to a keyway formed in the rotatable structure. In one embodiment, at least one of the keyways is truncated and, thus, extends only partially across the rotatable structure in the axial direction. A key substantially identical to the truncated keyway in length and width is placed therein, such that the sprocket is prevented from traveling or “walking” along the rotatable structure.

Abstract: A gear reducer having a hollow shaft is telescopically mounted on the upper end of a vertical conveyor drive shaft. The gear reducer is removed for repair by raising the gear reducer housing to separate the hollow shaft from the drive shaft while the drive shaft remains on the drive frame.

Abstract: A conveyor belt system having a drive pulley and a closed belt. The drive pulley has a plurality of pulley teeth thereon. The drive pulley has an axis of rotation. The closed belt has a pulley side which faces the drive pulley. The closed belt has a plurality of belt teeth and a plurality of recesses on the pulley side. Each of the recesses has two sides and a base. The drive pulley is configured to rotate about the axis of rotation in order to propel the belt in a drive direction by at least one of the pulley teeth pushing a corresponding one of the sides of one of the recesses. In a cross-sectional view of the drive pulley and the belt taken in a plane which is perpendicular to the axis of rotation, the one pulley tooth only partially fills the one recess.

Abstract: A sprocket drive system for a modular conveyor belt that compensates for drive-shaft twist under load. The drive system includes a plurality of belt drive surfaces spaced apart across the width of the underside of each row of a modular conveyor belt. A drive shaft supports a group of sprockets at spaced-apart locations. Sprocket drive surfaces are spaced apart circumferentially around the peripheries of the sprockets and arranged in rows across the sprocket to engage corresponding belt drive surfaces in the belt rows. The belt is wrapped around the sprockets on the drive shaft. The engagement of the sprocket drive surfaces with the belt drive surfaces drives the belt. Either the sprocket drive surfaces or the belt drive surfaces, or both, in each row are arranged in an out-of-phase relationship with each other when the conveyor belt is at no load. Once the conveyor belt is operating at load and the shaft twists, the drive surfaces assume an in-phase relationship for improved belt driving and tracking.

Abstract: The invention relates to a method for the control of the chain drive mechanisms of underground working machines and a correspondingly equipped chain scraper conveyor. The invention proposes to filter out a detection signal (Serk), representative of the currently arising vibrations of the chain (1), from the operating data of the main and auxiliary drives (I, II) by means of a detection device (34), and to take this to an active suppressor (35), which generates a time-variable control signal (STilgung) in accordance with a suppressor function, with which, in the frequency range of the vibration of the chain, a change is effected to a control value, e.g. (Ssoll) for the closing pressure adjustment of a multiple disc clutch (6) of at least one drive unit for the suppression of vibration by the abstraction of energy from, or the introduction of energy into the chain (1).

Abstract: A silent chain power transmitting apparatus has an endless link chain having a plurality of link plates (11A,11B,11C, . . . ) connected together, and sprocket wheels (20). Each of an inside flank (13) and an outside flank (14) of each link plate (11A,11B,11C, . . . ) is profiled by a circular shape of a same radius (&rgr;) of curvature whose individual center (d1, . . . ) of curvature is on a chain pitch line (PL). Each tooth (22) of the sprocket wheel (20) is profiled by a circular shape of the same radius(&rgr;) of curvature, which is meshed with corresponding inside flank (13) and outside flank (14) of each link plate (11A,11B,11C, . . . ). A power of the sprocket wheel (20) is transmitted to the link plates (11A,11B,11C, . . . ) in linear contact (or surface contact) momentarily, not in point contact.

Abstract: The drive mechanism (10) has a drive member (12) and a flexible conveying member (14). The engaging elements (12b) of the drive member (12) have an engaging element spacing (t1), while the associated counter elements (14b) of the conveyor member 14 have a counter element spacing (t2). According to the invention the engaging element spacing (t1) of the engaging elements (12b) is larger than the counter element spacing (t2) of the counter elements (14b) of the conveying member in order to compensate for conveyor member stretching in operation. In a preferred embodiment the conveying member is a flexible conveyor chain and the drive member (12) is a toothed drive wheel. In another preferred embodiment the ratio of the engaging element spacing (t1) of the drive member (12) to the counter element spacing (t2) of the conveying member (14) is between about 1.01 and about 1.10.

Abstract: A boost drive that decreases the belt tension at otherwise high-tension locations along the conveying path of a modular plastic conveyor belt. The boost drive includes first and second drive wheels arranged to rotate about parallel axes transverse to the direction of belt travel. The drive wheels engage the top and bottom sides of the belt near a side edge of the belt. A drive mechanism drives the wheels in tandem, which provide a drive force to the belt that supplements the primary drive force and decreases tension in the belt.

Abstract: An arrangement (1) of a conveyor section (2) is provided for containers (10, 11, 12) that are conveyed on said conveyor section and that are in a filling position. The containers are to be filled with items (3) or with a bulk material in a filling station (4) by means of a filling funnel (5). The conveyor section (2) is provided on at least one side immediately before, in and after the filling station (4) with a continuous toothed belt or a chain belt (6) and with a pertaining intermitting actuator (7) and spaced apart container carrying plates (8). The plates can be positively engaged with the containers (10, 11, 12) that are open towards the top and that arrive on the conveyor section (2). The plates supply the containers to the filling position one by one and return the containers once they are filled from the filling position to the conveying section (2), preferably in an accelerated clocked manner and optionally at the outlet thereof.

Abstract: A drive shaft (5) with at least one chain wheel (7) for the drive of chain scraper conveyors, especially for underground mining operations, with a full-width drive shaft (5) mounted on both ends in bearings (4) on the machine frame (1), which has outer gearing teeth (6) for the positive rotational engagement with single part chain wheels (7), which can be pulled off the drive shaft (5), whereby the drive shaft (5) has outer teeth (6) along its longitudinal region, in which a through central gearing (6) reaches to the reduced diameters (17) of the drive shaft (5) in the proximity of the bearing housings (3).

Abstract: A drive station for a chain scraper conveyor for mining operations, in which the height position of a drive shaft, can be set by means of an adaptor plate (50), which can be fastened at different height levels on the machine frame of the drive station. The adaptor plates (50) includes a machine frame side inner side (52) and a drive side outer side (53), onto which the drive set can be fastened. The position of fastening screws (56), (57) in elongate holes (54), (55), in the adaptor plate (50) the direction of an asymmetric setting key (30) and the rotational position of an annular disc plate (40) with an outer ring (42) arranged eccentrically to an inner ring (41), determine the assembly position in each case.

Abstract: A belt conveyor comprising an endless, fixed-width belt mounted on a pulley provided on rollers. Protrusions are formed on the back surface of the endless, fixed-width belt, and each of the protrusions has a shape comprising inwardly curved front and rear sides and tapering towards its tip end, and the pulley that is detachably mounted to each of the rollers is formed with holes, and each of the holes has a shape that fits each of the protrusions of the belt. The protrusions of the belt snugly engage with holes of the pulley, thus preventing meandering of the rotating belt.

Abstract: The invention relates to a belt conveyor comprising a revolving conveyor belt (1, 1′), carrying rollers (2, 2′) which are positioned between the upper strand (3) and the lower strand (4, 4′) of the conveyor belt (1), a drive device and a power-transmitting unit (5, 5′) for moving the conveyor belt (1). Damage to the surface of the conveyor belt of the belt conveyor by the power transmitting device is largely excluded by the fact that for power transmission a pair of elements (6, 6′, 7) is provided for which cooperate in a positive-fit and in that the one element (6, 6′) is assigned to the power-transmitting device (5, 5′) and the other element (7) to the conveyor belt (1).

Abstract: A sprocket drive system for a modular conveyor belt that compensates for drive-shaft twist under load. The drive system includes a plurality of belt drive surfaces spaced apart across the width of the underside of each row of a modular conveyor belt. A drive shaft supports a group of sprockets at spaced-apart locations. Sprocket drive surfaces are spaced apart circumferentially around the peripheries of the sprockets and arranged in rows across the sprocket to engage corresponding belt drive surfaces in the belt rows. The belt is wrapped around the sprockets on the drive shaft. The engagement of the sprocket drive surfaces with the belt drive surfaces drives the belt. Either the sprocket drive surfaces or the belt drive surfaces, or both, in each row are arranged in an out-of-phase relationship with each other when the conveyor belt is at no load. Once the conveyor belt is operating at load and the shaft twists, the drive surfaces assume an in-phase relationship for improved belt driving and tracking.

Abstract: A split housing for a sprocket in a conveyor system is disclosed. The sprocket includes a first, preferably upper portion that mates with a second, preferably lower portion to define a curved guide track for guiding a conveyor belt from a forward to a return run, or vice versa. The split nature of the housing allows for the removal of one portion, such as the upper portion, in a vertical direction without the need for moving the adjacent sprocket or guide rail. Hence, the other portion may remain attached to a stable structure used to support the conveyor system.

Abstract: A conveying apparatus comprises a modular conveying belt (1), which is made up of a plurality of modules (2), and a plurality of toothed drive wheels (4). The modules (2) have a module body (21), two series of articulation-eyelet elements (22, 23), which project from opposite sides of the module body (21) and each comprise an articulation eyelet (221, 231), and a transverse rib (24) arranged on the underside of the module body (21), transversely to the conveying direction. Two adjacent modules (2) interengage and are articulated on one another by an articulation rod (3). The toothed drive wheels (4) have teeth (41, 42) which, during driving of the conveying belt (1), are positioned against the transverse ribs (24).